Axial, lateral and torsional force dampener
US10858895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2014 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | May 22, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool for dampening vibrational, lateral, compressive, and tensile forces within a drillstring is described. The downhole tool generally includes a bottom end shaft configurable to a drillstring and that is telescopically engaged within a compression housing and a torsional housing. The torsional housing enables the bottom end shaft to slide axially with respect to the torsional housing whilst preventing torsional movement of the bottom end shaft relative to the torsional housing. The compression housing is configurable to drillstring equipment and operatively contains a first spring between the compression housing and the bottom end shaft that absorbs compression forces between bottom end shaft and compression housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.